(4) Loans and Allowances for Credit Losses

Loans

Loans are either secured or unsecured based on the type of loan and the financial condition of the borrower. Repayment is generally expected from cash flow or proceeds from the sale of selected assets of the borrower. BOK Financial is exposed to risk of loss on loans due to the borrower’s difficulties, which may arise from any number of factors, including problems within the respective industry or local economic conditions. Access to collateral, in the event of borrower default, is reasonably assured through adherence to applicable lending laws and through sound lending standards and credit review procedures. Accounting policies for all loans, excluding residential mortgage loans guaranteed by U.S. government agencies, are as follows.

Interest is accrued at the applicable interest rate on the principal amount outstanding. Loans are placed on nonaccruing status when, in the opinion of management, full collection of principal or interest is uncertain. Internally risk graded loans are individually evaluated for nonaccruing status quarterly. Non-risk graded loans are generally placed on nonaccruing status when more than 90 days past due or within 60 days of being notified of the borrower's bankruptcy filing. Interest previously accrued but not collected is charged against interest income when the loan is placed on nonaccruing status. Payments on nonaccruing loans are applied to principal or recognized as interest income, according to management’s judgment as to the collectability of principal. Loans may be returned to accruing status when, in the opinion of management, full collection of principal and interest, including principal previously charged off, is probable based on improvements in the borrower’s financial condition or a sustained period of performance.

Loans to borrowers experiencing financial difficulties may be modified in troubled debt restructurings ("TDRs"). All TDRs are classified as nonaccruing. Modifications generally consist of extension of payment terms or interest rate concessions and may result either voluntarily through negotiations with the borrower or involuntarily through court order. Generally, principal and accrued but unpaid interest is not voluntarily forgiven.

Performing loans may be renewed under the current collateral value, debt service ratio and other underwriting standards. Nonaccruing loans may be renewed and will remain classified as nonaccruing.

All loans are charged off when the loan balance or a portion of the loan balance is no longer supported by the paying capacity of the borrower or when the required cash flow is reduced in a TDR. The charge-off amount is determined through a quarterly evaluation of available cash resources and collateral value and charge-offs are taken in the quarter in which the loss is identified. Non-risk graded loans that are past due between 60 and 180 days, based on the loan product type, are charged off. Loans to borrowers whose personal obligation has been discharged through Chapter 7 bankruptcy proceedings are charged off within 60 days of notice of the bankruptcy filing, regardless of payment status.

Loan origination and commitment fees and direct loan acquisition and origination costs are deferred and amortized as an adjustment to yield over the life of the loan or over the commitment period, as applicable.

Qualifying residential mortgage loans guaranteed by U.S. government agencies have been sold into GNMA pools. Under certain performance conditions specified in government programs, the Company may have the right, but not the obligation to repurchase loans from GNMA pools. These loans no longer qualify for sale accounting and are recognized in the Consolidated Balance Sheets. Guaranteed loans are considered impaired because we do not expect to receive all principal and interest based on the loan's contractual terms. The principal balance continues to be guaranteed; however, interest accrues at a curtailed rate as specified in the programs. The carrying value of these loans is reduced based on an estimate of the expected cash flows discounted at the original note rate plus a liquidity spread. Guaranteed loans may be modified in TDRs in accordance with U.S. government agency guidelines. Interest continues to accrue based on the modified rate. Guaranteed loans may either be resold into GNMA pools after a performance period specified by the programs or foreclosed and conveyed to the guarantors.

Loans are disaggregated into portfolio segments and further disaggregated into classes. The portfolio segment is the level at which the Company develops and documents a systematic method for determining its allowance for credit losses. Classes are a further disaggregation of portfolio segments based on the risk characteristics of the loans and the Company’s method for monitoring and assessing credit risk.

Portfolio segments of the loan portfolio are as follows (in thousands):



	March 31, 2016								December 31, 2015
	Fixed Rate		Variable Rate		Non-accrual		Total		Fixed Rate		Variable Rate		Non-accrual		Total
Commercial	$	1,932,757	$	8,181,016	$	174,652	$	10,288,425	$	1,850,548	$	8,325,559	$	76,424	$	10,252,531
Commercial real estate	643,033		2,718,204		9,270		3,370,507		627,678		2,622,354		9,001		3,259,033
Residential mortgage	1,592,706		219,026		57,577		1,869,309		1,598,992		216,661		61,240		1,876,893
Personal	87,092		406,902		331		494,325		91,816		460,418		463		552,697
Total	$	4,255,588	$	11,525,148	$	241,830	$	16,022,566	$	4,169,034	$	11,624,992	$	147,128	$	15,941,154
Accruing loans past due (90 days)¹							$	8,019							$	1,207



	March 31, 2015
	Fixed Rate		Variable Rate		Non-accrual		Total
Commercial	$	1,807,837	$	7,569,446	$	13,880	$	9,391,163
Commercial real estate	703,511		2,212,051		19,902		2,935,464
Residential mortgage	1,679,211		201,301		46,487		1,926,999
Personal	100,719		329,327		464		430,510
Total	$	4,291,278	$	10,312,125	$	80,733	$	14,684,136
Accruing loans past due (90 days)¹							$	523


¹	Excludes residential mortgage loans guaranteed by agencies of the U.S. government

At March 31, 2016, $5.3 billion or 33 percent of our total loan portfolio is to businesses and individuals attributed to the Texas market and $3.7 billion or 23 percent of the total loan portfolio is to businesses and individuals attributed to the Oklahoma market. These geographic concentrations subject the loan portfolio to the general economic conditions within these areas.

Commercial

Commercial loans represent loans for working capital, facilities acquisition or expansion, purchases of equipment and other needs of commercial customers primarily located within our geographical footprint. Commercial loans are underwritten individually and represent on-going relationships based on a thorough knowledge of the customer, the customer’s industry and market. While commercial loans are generally secured by the customer’s assets including real property, inventory, accounts receivable, operating equipment, interest in mineral rights and other property and may also include personal guarantees of the owners and related parties, the primary source of repayment of the loans is the on-going cash flow from operations of the customer’s business. Inherent lending risk is centrally monitored on a continuous basis from underwriting throughout the life of the loan for compliance with commercial lending policies.

At March 31, 2016, commercial loans attributed to the Texas market totaled $3.5 billion or 34 percent of the commercial loan portfolio segment and commercial loans attributed to the Oklahoma market totaled $2.4 billion or 23 percent of the commercial loan portfolio segment.

The commercial loan portfolio segment is further divided into loan classes. The energy loan class totaled $3.0 billion or 19 percent of total loans at March 31, 2016, including $2.5 billion of outstanding loans to energy producers. Approximately 60 percent of committed production loans are secured by properties primarily producing oil and 40 percent are secured by properties producing natural gas. The services loan class totaled $2.7 billion at March 31, 2016. Approximately $1.3 billion of loans in the services category consist of loans with individual balances of less than $10 million. Businesses included in the services class include governmental, finance and insurance, not-for-profit, educational services and loans to entities providing services for real estate and construction.

Commercial Real Estate

Commercial real estate loans are for the construction of buildings or other improvements to real estate and property held by borrowers for investment purposes primarily within our geographical footprint. We require collateral values in excess of the loan amounts, demonstrated cash flows in excess of expected debt service requirements, equity investment in the project and a portion of the project already sold, leased or permanent financing already secured. The expected cash flows from all significant new or renewed income producing property commitments are stress tested to reflect the risks in varying interest rates, vacancy rates and rental rates. As with commercial loans, inherent lending risks are centrally monitored on a continuous basis from underwriting throughout the life of the loan for compliance with applicable lending policies.

At March 31, 2016, 30 percent of commercial real estate loans are secured by properties primarily located in the Dallas and Houston areas of Texas. An additional 13 percent of commercial real estate loans are secured by properties located primarily in the Tulsa and Oklahoma City metropolitan areas of Oklahoma.

Residential Mortgage and Personal

Residential mortgage loans provide funds for our customers to purchase or refinance their primary residence or to borrow against the equity in their home. Residential mortgage loans are secured by a first or second mortgage on the customer’s primary residence. Personal loans consist primarily of loans secured by the cash surrender value of insurance policies and marketable securities. It also includes direct loans secured by and for the purchase of automobiles, recreational and marine equipment as well as unsecured loans. Residential mortgage and personal loans are made in accordance with underwriting policies we believe to be conservative and are fully documented. Loans may be individually underwritten or credit scored based on size and other criteria. Credit scoring is assessed based on significant credit characteristics including credit history, residential and employment stability. Residential mortgage loans retained in the Company’s portfolio are primarily composed of various mortgage programs to support customer relationships including jumbo mortgage loans, non-builder construction loans and special loan programs for high net worth individuals and certain professionals. Jumbo loans may be fixed or variable rate and are fully amortizing. Jumbo loans generally conform to government sponsored entity standards, except that the loan size exceeds maximums required under these standards. These loans generally require a minimum FICO score of 720 and a maximum debt-to-income ratio (“DTI”) of 38 percent. Loan-to-value (“LTV”) ratios are tiered from 60 percent to 100 percent, depending on the market. Special mortgage programs include fixed and variable fully amortizing loans tailored to the needs of certain healthcare professionals. Variable rate loans are fully indexed at origination and may have fixed rates for three to ten years, then adjust annually thereafter.

At March 31, 2016, residential mortgage loans included $197 million of loans guaranteed by U.S. government agencies previously sold into GNMA mortgage pools. These loans either have been repurchased or are eligible to be repurchased by the Company when certain defined delinquency criteria are met. Although payments on these loans generally are past due more than 90 days, interest continues to accrue based on the government guarantee.

Home equity loans totaled $724 million at March 31, 2016. Approximately, 67 percent of the home equity loan portfolio is comprised of first lien loans and 33 percent of the home equity portfolio is comprised of junior lien loans. Junior lien loans are distributed 63 percent to amortizing term loans and 37 percent to revolving lines of credit. Home equity loans generally require a minimum FICO score of 700 and a maximum DTI of 40 percent. The maximum loan amount available for our home equity loan products is generally $400 thousand. Revolving loans have a 5 year revolving period followed by a 15 year term of amortizing repayments. Interest-only home equity loans may not be extended for any additional revolving time. All other home equity loans may be extended at management's discretion for an additional 5 year revolving term, subject to an update of certain credit information.

Credit Commitments

Commitments to extend credit are agreements to lend to a customer as long as there is no violation of conditions established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. At March 31, 2016, outstanding commitments totaled $8.6 billion. Because some commitments are expected to expire before being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. BOK Financial uses the same credit policies in making commitments as it does loans.

The amount of collateral obtained, if deemed necessary, is based upon management’s credit evaluation of the borrower.

Standby letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party. Because the credit risk involved in issuing standby letters of credit is essentially the same as that involved in extending loan commitments, BOK Financial uses the same credit policies in evaluating the creditworthiness of the customer. Additionally, BOK Financial uses the same evaluation process in obtaining collateral on standby letters of credit as it does for loan commitments. The term of these standby letters of credit is defined in each commitment and typically corresponds with the underlying loan commitment. At March 31, 2016, outstanding standby letters of credit totaled $510 million. Commercial letters of credit are used to facilitate customer trade transactions with the drafts being drawn when the underlying transaction is consummated. At March 31, 2016, outstanding commercial letters of credit totaled $7.8 million.

Allowances for Credit Losses

BOK Financial maintains an allowance for loan losses and an accrual for off-balance sheet credit risk. The accrual for off-balance sheet credit risk is maintained at a level that is appropriate to cover estimated losses associated with credit instruments that are not currently recognized as assets such as loan commitments, standby letters of credit or guarantees. As discussed in greater detail in Note 6, the Company also has separate accruals for off-balance sheet credit risk related to residential mortgage loans previously sold with full or partial recourse and for residential mortgage loans sold to government sponsored agencies under standard representations and warranties.

The appropriateness of the allowance for loan losses and accrual for off-balance sheet credit losses (collectively "allowance for credit losses") is assessed by management based on an on-going quarterly evaluation of the probable estimated losses inherent in the portfolio, including probable losses on both outstanding loans and unused commitments.

The allowance for loan losses consists of specific allowances attributed to impaired loans that have not yet been charged down to amounts we expect to recover, general allowances for unimpaired loans based on estimated loss rates by loan class and nonspecific allowances based on general economic conditions, risk concentration and related factors. There have been no material changes in the approach or techniques utilized in developing the allowance for loan losses and the accrual for off-balance sheet credit losses for the three months ended March 31, 2016.

Loans are considered to be impaired when it becomes probable that BOK Financial will be unable to collect all amounts due according to the contractual terms of the loan agreements. Internally risk graded loans are evaluated individually for impairment. Substantially all commercial and commercial real estate loans and certain residential mortgage and consumer loans are risk graded based on evaluation of the borrowers' ability to repay. Certain commercial loans and most residential mortgage and consumer loans are small balance, homogeneous pools of loans that are not risk graded. Non-risk graded loans are identified as impaired based on performance status. Generally, non-risk graded loans 90 days or more past due or modified in a TDR or in bankruptcy are considered to be impaired.

Specific allowances for impaired loans are measured by an evaluation of estimated future cash flows discounted at the loans’ initial effective interest rate or the fair value of collateral for certain collateral dependent loans. Collateral value of real property is generally based on third party appraisals that conform to Uniform Standards of Professional Appraisal Practice, less estimated selling costs. Appraised values are on an "as-is" basis and are generally not adjusted by the Company. Updated appraisals are obtained at least annually or more frequently if market conditions indicate collateral values have declined. Collateral value of mineral rights is generally determined by our internal staff of engineers based on projected cash flows under current market conditions. Collateral values and available cash resources that support impaired loans are evaluated quarterly. Historical statistics may be used as a practical way to estimate impairment in limited situations, such as when a collateral dependent loan is identified as impaired at the end of a reporting period, until an updated appraisal of collateral value is received or a full assessment of future cash flows is completed. Estimates of future cash flows and collateral values require significant judgments and may be volatile.

General allowances for unimpaired loans are based on estimated loss rates by loan class. The gross loss rate for each loan class is determined by the greater of the current gross loss rate based on the most recent twelve months or a ten-year gross loss rate. Recoveries are not directly considered in the estimation of loss rates. Recoveries generally do not follow predictable patterns and are not received until well after the charge-off date as a result of protracted legal actions. For risk graded loans, gross loss rates are adjusted for changes in risk grading. For each loan class, the current weighted average risk grade is compared to the long-term average risk grade. This comparison determines whether credit risk in each loan class is increasing or decreasing. Loss rates are adjusted upward or downward in proportion to changes in average risk grading. General allowances for unimpaired loans also consider inherent risks identified for each loan class. Inherent risks consider loss rates that most appropriately represent the current credit cycle and other factors attributable to specific loan classes which have not yet been represented in the gross loss rates or risk grading. These factors include changes in commodity prices or engineering imprecision, which may affect the value of reserves that secure our energy loan portfolio, construction risk that may affect commercial real estate loans, changes in regulations and public policy that may disproportionately impact health care loans and changes in loan products.

Nonspecific allowances are maintained for risks beyond factors specific to a particular loan or loan class. These factors include trends in the economy of our primary lending areas, concentrations in large balance loans and other relevant factors.

An accrual for off-balance sheet credit losses is included in Other liabilities in the Consolidated Balance Sheets. The appropriateness of this accrual is determined in the same manner as the allowance for loan losses.

A provision for credit losses is charged against or credited to earnings in amounts necessary to maintain an appropriate allowance for credit losses. Recoveries of loans previously charged off are added to the allowance when received.

The activity in the allowance for loan losses and the allowance for off-balance sheet credit losses related to loan commitments and standby letters of credit for the three months ended March 31, 2016 is summarized as follows (in thousands):



	Commercial			Commercial Real Estate		Residential Mortgage			Personal			Nonspecific Allowance			Total
Allowance for loan losses:
Beginning balance	$	130,334		$	41,391	$	19,509		$	4,164		$	30,126		$	225,524
Provision for loan losses	31,097			2,977		(731		)	1,466			(4,705		)	30,104
Loans charged off	(22,126		)	—		(474		)	(1,391		)	—			(23,991		)
Recoveries	488			85		163			783			—			1,519
Ending balance	$	139,793		$	44,453	$	18,467		$	5,022		$	25,421		$	233,156
Allowance for off-balance sheet credit losses:
Beginning balance	$	1,506		$	153	$	30		$	22		$	—		$	1,711
Provision for off-balance sheet credit losses	4,813			75		28			(20		)	—			4,896
Ending balance	$	6,319		$	228	$	58		$	2		$	—		$	6,607

Total provision for credit losses	$	35,910		$	3,052	$	(703	)	$	1,446		$	(4,705	)	$	35,000



	Commercial			Commercial Real Estate			Residential Mortgage			Personal			Nonspecific Allowance		Total
Allowance for loan losses:
Beginning balance	$	90,875		$	42,445		$	23,458		$	4,233		$	28,045	$	189,056
Provision for loan losses	10,353			(10,417		)	(27		)	339			28		276
Loans charged off	(174		)	(28		)	(624		)	(1,343		)	—		(2,169		)
Recoveries	357			8,819			437			910			—		10,523
Ending balance	$	101,411		$	40,819		$	23,244		$	4,139		$	28,073	$	197,686
Allowance for off-balance sheet credit losses:
Beginning balance	$	475		$	707		$	28		$	20		$	—	$	1,230
Provision for off-balance sheet credit losses	102			(374		)	(4		)	—			—		(276		)
Ending balance	$	577		$	333		$	24		$	20		$	—	$	954

Total provision for credit losses	$	10,455		$	(10,791	)	$	(31	)	$	339		$	28	$	—

The allowance for loan losses and recorded investment of the related loans by portfolio segment for each impairment measurement method at March 31, 2016 is as follows (in thousands):



	Collectively Measured for Impairment				Individually Measured for Impairment				Total
	Recorded Investment		Related Allowance		Recorded Investment		Related Allowance		Recorded Investment		Related Allowance
Commercial	$	10,113,773	$	137,191	$	174,652	$	2,602	$	10,288,425	$	139,793
Commercial real estate	3,361,237		44,435		9,270		18		3,370,507		44,453
Residential mortgage	1,811,732		18,401		57,577		66		1,869,309		18,467
Personal	493,994		5,022		331		—		494,325		5,022
Total	15,780,736		205,049		241,830		2,686		16,022,566		207,735

Nonspecific allowance	—		—		—		—		—		25,421

Total	$	15,780,736	$	205,049	$	241,830	$	2,686	$	16,022,566	$	233,156

The allowance for loan losses and recorded investment of the related loans by portfolio segment for each impairment measurement method at December 31, 2015 is as follows (in thousands):



	Collectively Measured for Impairment				Individually Measured for Impairment				Total
	Recorded Investment		Related Allowance		Recorded Investment		Related Allowance		Recorded Investment		Related Allowance
Commercial	$	10,176,107	$	114,027	$	76,424	$	16,307	$	10,252,531	$	130,334
Commercial real estate	3,250,032		41,373		9,001		18		3,259,033		41,391
Residential mortgage	1,815,653		19,441		61,240		68		1,876,893		19,509
Personal	552,234		4,164		463		—		552,697		4,164
Total	15,794,026		179,005		147,128		16,393		15,941,154		195,398

Nonspecific allowance	—		—		—		—		—		30,126

Total	$	15,794,026	$	179,005	$	147,128	$	16,393	$	15,941,154	$	225,524

The allowance for loan losses and recorded investment of the related loans by portfolio segment for each impairment measurement method at March 31, 2015 is as follows (in thousands):



	Collectively Measured for Impairment				Individually Measured for Impairment				Total
	Recorded Investment		Related Allowance		Recorded Investment		Related Allowance		Recorded Investment		Related Allowance
Commercial	$	9,377,283	$	101,214	$	13,880	$	197	$	9,391,163	$	101,411
Commercial real estate	2,915,562		40,801		19,902		18		2,935,464		40,819
Residential mortgage	1,880,512		23,142		46,487		102		1,926,999		23,244
Personal	430,046		4,139		464		—		430,510		4,139
Total	14,603,403		169,296		80,733		317		14,684,136		169,613

Nonspecific allowance	—		—		—		—		—		28,073

Total	$	14,603,403	$	169,296	$	80,733	$	317	$	14,684,136	$	197,686

Credit Quality Indicators

The Company utilizes loan class and risk grading as primary credit quality indicators. Substantially all commercial and commercial real estate loans and certain residential mortgage and consumer loans are risk graded based on a quarterly evaluation of the borrowers’ ability to repay the loans. Certain commercial loans and most residential mortgage and consumer loans are small, homogeneous pools that are not risk graded.

The allowance for loan losses and recorded investment of the related loans by portfolio segment for risk graded and non-risk graded loans at March 31, 2016 is as follows (in thousands):



	Internally Risk Graded				Non-Graded				Total
	Recorded Investment		Related Allowance		Recorded Investment		Related Allowance		Recorded Investment		Related Allowance
Commercial	$	10,264,965	$	138,887	$	23,460	$	906	$	10,288,425	$	139,793
Commercial real estate	3,370,507		44,453		—		—		3,370,507		44,453
Residential mortgage	192,658		2,822		1,676,651		15,645		1,869,309		18,467
Personal	410,318		2,954		84,007		2,068		494,325		5,022
Total	14,238,448		189,116		1,784,118		18,619		16,022,566		207,735

Nonspecific allowance	—		—		—		—		—		25,421

Total	$	14,238,448	$	189,116	$	1,784,118	$	18,619	$	16,022,566	$	233,156

The allowance for loan losses and recorded investment of the related loans by portfolio segment for risk graded and non-risk graded loans at December 31, 2015 is as follows (in thousands):



	Internally Risk Graded				Non-Graded				Total
	Recorded Investment		Related Allowance		Recorded Investment		Related Allowance		Recorded Investment		Related Allowance
Commercial	$	10,227,303	$	129,426	$	25,228	$	908	$	10,252,531	$	130,334
Commercial real estate	3,259,033		41,391		—		—		3,259,033		41,391
Residential mortgage	196,701		2,883		1,680,192		16,626		1,876,893		19,509
Personal	467,955		1,390		84,742		2,774		552,697		4,164
Total	14,150,992		175,090		1,790,162		20,308		15,941,154		195,398

Nonspecific allowance	—		—		—		—		—		30,126

Total	$	14,150,992	$	175,090	$	1,790,162	$	20,308	$	15,941,154	$	225,524

The allowance for loan losses and recorded investment of the related loans by portfolio segment for risk graded and non-risk graded loans at March 31, 2015 is as follows (in thousands):



	Internally Risk Graded				Non-Graded				Total
	Recorded Investment		Related Allowance		Recorded Investment		Related Allowance		Recorded Investment		Related Allowance
Commercial	$	9,367,119	$	100,592	$	24,044	$	819	$	9,391,163	$	101,411
Commercial real estate	2,935,464		40,819		—		—		2,935,464		40,819
Residential mortgage	196,782		3,028		1,730,217		20,216		1,926,999		23,244
Personal	341,530		1,386		88,980		2,753		430,510		4,139
Total	12,840,895		145,825		1,843,241		23,788		14,684,136		169,613

Nonspecific allowance	—		—		—		—		—		28,073

Total	$	12,840,895	$	145,825	$	1,843,241	$	23,788	$	14,684,136	$	197,686

Loans are considered to be performing if they are in compliance with the original terms of the agreement, which is consistent with the regulatory guideline of “pass.” Performing also includes loans considered to be “other loans especially mentioned” by regulatory guidelines. Other loans especially mentioned are in compliance with the original terms of the agreement but may have a weakness that deserves management’s close attention. Performing loans also include past due residential mortgages that are guaranteed by agencies of the U.S. government.

The risk grading process identified certain criticized loans as potential problem loans. These loans have a well-defined weakness (e.g. inadequate debt service coverage or liquidity or marginal capitalization; repayment may depend on collateral or other risk mitigation) that may jeopardize liquidation of the debt and represent a greater risk due to deterioration in the financial condition of the borrower. This is consistent with the regulatory guideline for “substandard.” Because the borrowers are still performing in accordance with the original terms of the loan agreements, these loans were not placed in nonaccruing status. Known information does, however, cause concern as to the borrowers’ continued compliance with current repayment terms. Nonaccruing loans represent loans for which full collection of principal and interest is uncertain. This is substantially the same criteria used to determine whether a loan is impaired and includes certain loans considered “substandard” and all loans considered “doubtful” by regulatory guidelines.

The following table summarizes the Company’s loan portfolio at March 31, 2016 by the risk grade categories (in thousands):



	Internally Risk Graded						Non-Graded
	Performing		Potential Problem		Nonaccrual		Performing		Nonaccrual		Total
Commercial:
Energy	$	2,466,909	$	402,958	$	159,553	$	—	$	—	$	3,029,420
Services	2,712,494		6,885		9,512		—		—		2,728,891
Wholesale/retail	1,428,215		19,946		3,685		—		—		1,451,846
Manufacturing	588,827		11,506		312		—		—		600,645
Healthcare	1,986,598		7,804		1,023		—		—		1,995,425
Other commercial and industrial	458,255		—		483		23,376		84		482,198
Total commercial	9,641,298		449,099		174,568		23,376		84		10,288,425

Commercial real estate:
Residential construction and land development	166,237		923		4,789		—		—		171,949
Retail	808,800		420		1,302		—		—		810,522
Office	694,923		—		629		—		—		695,552
Multifamily	726,933		6,506		250		—		—		733,689
Industrial	564,391		—		76		—		—		564,467
Other commercial real estate	392,095		9		2,224		—		—		394,328
Total commercial real estate	3,353,379		7,858		9,270		—		—		3,370,507

Residential mortgage:
Permanent mortgage	187,166		3,146		2,346		730,596		25,151		948,405
Permanent mortgages guaranteed by U.S. government agencies	—		—		—		177,800		19,550		197,350
Home equity	—		—		—		713,024		10,530		723,554
Total residential mortgage	187,166		3,146		2,346		1,621,420		55,231		1,869,309

Personal	410,095		100		123		83,799		208		494,325

Total	$	13,591,938	$	460,203	$	186,307	$	1,728,595	$	55,523	$	16,022,566

The following table summarizes the Company’s loan portfolio at December 31, 2015 by the risk grade categories (in thousands):



	Internally Risk Graded						Non-Graded
	Performing		Potential Problem		Nonaccrual		Performing		Nonaccrual		Total
Commercial:
Energy	$	2,906,357	$	129,782	$	61,189	$	—	$	—	$	3,097,328
Services	2,767,225		6,761		10,290		—		—		2,784,276
Wholesale/retail	1,412,780		6,365		2,919		—		—		1,422,064
Manufacturing	554,526		1,872		331		—		—		556,729
Healthcare	1,882,308		—		1,072		—		—		1,883,380
Other commercial and industrial	483,030		—		496		25,101		127		508,754
Total commercial	10,006,226		144,780		76,297		25,101		127		10,252,531

Commercial real estate:
Residential construction and land development	155,724		293		4,409		—		—		160,426
Retail	794,754		426		1,319		—		—		796,499
Office	636,501		555		651		—		—		637,707
Multifamily	744,299		6,512		274		—		—		751,085
Industrial	563,093		—		76		—		—		563,169
Other commercial real estate	347,864		11		2,272		—		—		350,147
Total commercial real estate	3,242,235		7,797		9,001		—		—		3,259,033

Residential mortgage:
Permanent mortgage	192,456		1,932		2,313		721,964		26,671		945,336
Permanent mortgages guaranteed by U.S. government agencies	—		—		—		175,037		21,900		196,937
Home equity	—		—		—		724,264		10,356		734,620
Total residential mortgage	192,456		1,932		2,313		1,621,265		58,927		1,876,893

Personal	467,811		14		130		84,409		333		552,697

Total	$	13,908,728	$	154,523	$	87,741	$	1,730,775	$	59,387	$	15,941,154

The following table summarizes the Company’s loan portfolio at March 31, 2015 by the risk grade categories (in thousands):



	Internally Risk Graded						Non-Graded
	Performing		Potential Problem		Nonaccrual		Performing		Nonaccrual		Total
Commercial:
Energy	$	2,857,004	$	44,115	$	1,875	$	—	$	—	$	2,902,994
Services	2,573,879		14,253		4,744		—		—		2,592,876
Wholesale/retail	1,377,439		23,960		4,401		—		—		1,405,800
Manufacturing	546,566		13,942		417		—		—		560,925
Healthcare	1,505,072		4,547		1,558		—		—		1,511,177
Other commercial and industrial	392,549		—		798		23,957		87		417,391
Total commercial	9,252,509		100,817		13,793		23,957		87		9,391,163

Commercial real estate:
Residential construction and land development	128,795		759		9,598		—		—		139,152
Retail	654,429		574		3,857		—		—		658,860
Office	510,881		571		2,410		—		—		513,862
Multifamily	737,750		12,236		—		—		—		749,986
Industrial	478,508		—		76		—		—		478,584
Other commercial real estate	390,345		714		3,961		—		—		395,020
Total commercial real estate	2,900,708		14,854		19,902		—		—		2,935,464

Residential mortgage:
Permanent mortgage	192,473		2,069		2,240		736,357		31,125		964,264
Permanent mortgages guaranteed by U.S. government agencies	—		—		—		196,923		3,256		200,179
Home equity	—		—		—		752,690		9,866		762,556
Total residential mortgage	192,473		2,069		2,240		1,685,970		44,247		1,926,999

Personal	341,355		17		158		88,674		306		430,510

Total	$	12,687,045	$	117,757	$	36,093	$	1,798,601	$	44,640	$	14,684,136

Impaired Loans

Loans are considered to be impaired when it is probable that the Company will not be able to collect all amounts due according to the contractual terms of the loan agreement. This includes all nonaccruing loans, all loans modified in a TDR and all loans repurchased from GNMA pools.

A summary of impaired loans follows (in thousands):



	As of										For the
	March 31, 2016										Three Months Ended
			Recorded Investment								March 31, 2016
	Unpaid Principal Balance		Total		With No Allowance		With Allowance		Related Allowance		Average Recorded Investment		Interest Income Recognized
Commercial:
Energy	$	182,224	$	159,553	$	125,072	$	34,481	$	2,558	$	93,627	$	—
Services	12,824		9,512		9,512		—		—		9,901		—
Wholesale/retail	9,502		3,685		3,673		12		9		3,302		—
Manufacturing	658		312		312		—		—		322		—
Healthcare	1,338		1,023		905		118		35		1,048		—
Other commercial and industrial	8,235		567		567		—		—		595		—
Total commercial	214,781		174,652		140,041		34,611		2,602		108,795		—

Commercial real estate:
Residential construction and land development	7,621		4,789		4,789		—		—		4,599		—
Retail	1,923		1,302		1,302		—		—		1,311		—
Office	920		629		629		—		—		640		—
Multifamily	1,192		250		250		—		—		262		—
Industrial	76		76		76		—		—		76		—
Other real estate loans	8,348		2,224		2,068		156		18		2,248		—
Total commercial real estate	20,080		9,270		9,114		156		18		9,136		—

Residential mortgage:
Permanent mortgage	35,149		27,497		27,383		114		66		28,240		327
Permanent mortgage guaranteed by U.S. government agencies¹	203,396		197,350		197,350		—		—		199,697		1,772
Home equity	11,321		10,530		10,530		—		—		10,443		—
Total residential mortgage	249,866		235,377		235,263		114		66		238,380		2,099

Personal	363		331		331		—		—		397		—

Total	$	485,090	$	419,630	$	384,749	$	34,881	$	2,686	$	356,708	$	2,099


¹	All permanent mortgage loans guaranteed by U.S. government agencies are considered impaired as we do not expect full collection of contractual principal and interest. At March 31, 2016, $19.6 million of these loans were nonaccruing and $178 million were accruing based on the guarantee by U.S. government agencies.

Generally, no interest income is recognized on impaired loans until all principal balances, including amounts charged-off, are recovered.

A summary of impaired loans at December 31, 2015 follows (in thousands):



			Recorded Investment
	Unpaid Principal Balance		Total		With No Allowance		With Allowance		Related Allowance
Commercial:
Energy	$	63,910	$	61,189	$	18,330	$	42,859	$	16,115
Services	13,449		10,290		9,657		633		148
Wholesale/retail	8,582		2,919		2,907		12		9
Manufacturing	665		331		331		—		—
Healthcare	1,352		1,072		931		141		35
Other commercial and industrial	8,304		623		623		—		—
Total commercial	96,262		76,424		32,779		43,645		16,307

Commercial real estate:
Residential construction and land development	8,963		4,409		4,409		—		—
Retail	1,923		1,319		1,319		—		—
Office	937		651		651		—		—
Multifamily	1,192		274		274		—		—
Industrial	76		76		76		—		—
Other real estate loans	8,363		2,272		2,113		159		18
Total commercial real estate	21,454		9,001		8,842		159		18

Residential mortgage:
Permanent mortgage	37,273		28,984		28,868		116		68
Permanent mortgage guaranteed by U.S. government agencies¹	202,984		196,937		196,937		—		—
Home equity	10,988		10,356		10,356		—		—
Total residential mortgage	251,245		236,277		236,161		116		68

Personal	489		463		463		—		—

Total	$	369,450	$	322,165	$	278,245	$	43,920	$	16,393


¹	All permanent mortgage loans guaranteed by U.S. government agencies are considered impaired as we do not expect full collection of contractual principal and interest. At December 31, 2015, $21.9 million of these loans were nonaccruing and $175 million were accruing based on the guarantee by U.S. government agencies.

A summary of impaired loans at March 31, 2015 follows (in thousands):



											For the
	As of March 31, 2015										Three Months Ended
			Recorded Investment								March 31, 2015
	Unpaid Principal Balance		Total		With No Allowance		With Allowance		Related Allowance		Average Recorded Investment		Interest Income Recognized
Commercial:
Energy	$	1,884	$	1,875	$	1,875	$	—	$	—	$	1,646	$	—
Services	7,698		4,744		4,051		693		153		4,972		—
Wholesale/retail	9,953		4,401		4,369		32		9		4,275		—
Manufacturing	716		417		417		—		—		433		—
Healthcare	2,626		1,558		1,362		196		35		1,469		—
Other commercial and industrial	8,559		885		885		—		—		908		—
Total commercial	31,436		13,880		12,959		921		197		13,703		—

Commercial real estate:
Residential construction and land development	14,367		9,598		9,598		—		—		7,449		—
Retail	5,376		3,857		3,857		—		—		3,892		—
Office	4,464		2,410		2,410		—		—		2,915		—
Multifamily	—		—		—		—		—		—		—
Industrial	76		76		76		—		—		38		—
Other real estate loans	9,950		3,961		3,791		170		18		4,936		—
Total commercial real estate	34,233		19,902		19,732		170		18		19,230		—

Residential mortgage:
Permanent mortgage	42,011		33,365		33,200		165		102		34,105		315
Permanent mortgage guaranteed by U.S. government agencies¹	207,133		200,179		200,179		—		—		207,795		2,256
Home equity	10,129		9,866		9,866		—		—		9,715		—
Total residential mortgage	259,273		243,410		243,245		165		102		251,615		2,571

Personal	482		464		464		—		—		515		—

Total	$	325,424	$	277,656	$	276,400	$	1,256	$	317	$	285,063	$	2,571


¹	All permanent mortgage loans guaranteed by U.S. government agencies are considered impaired as we do not expect full collection of contractual principal and interest. At March 31, 2015, $3.3 million of these loans were nonaccruing and $197 million were accruing based on the guarantee by U.S. government agencies.

Troubled Debt Restructurings

A summary of troubled debt restructurings ("TDRs") by accruing status as of March 31, 2016 is as follows (in thousands):



	As of March 31, 2016
	Recorded Investment		Performing in Accordance With Modified Terms		Not Performing in Accordance With Modified Terms		Specific Allowance		Amounts Charged Off During the Three Months Ended March 31, 2016
Nonaccruing TDRs:

Commercial:
Energy	$	2,829	$	—	$	2,829	$	—	$	—
Services	8,863		8,076		787		—		—
Wholesale/retail	2,619		2,567		52		9		—
Manufacturing	267		267		—		—		—
Healthcare	656		656		—		—		—
Other commercial and industrial	548		65		483		—		57
Total commercial	15,782		11,631		4,151		9		57

Commercial real estate:
Residential construction and land development	1,871		296		1,575		—		—
Retail	1,302		925		377		—		—
Office	160		160		—		—		—
Multifamily	—		—		—		—		—
Industrial	—		—		—		—		—
Other real estate loans	909		478		431		—		—
Total commercial real estate	4,242		1,859		2,383		—		—

Residential mortgage:
Permanent mortgage	16,242		11,451		4,791		66		3
Permanent mortgage guaranteed by U.S. government agencies	9,809		851		8,958		—		—
Home equity	5,078		4,207		871		—		66
Total residential mortgage	31,129		16,509		14,620		66		69

Personal	284		262		22		—		7

Total nonaccruing TDRs	$	51,437	$	30,261	$	21,176	$	75	$	133

Accruing TDRs:
Permanent mortgages guaranteed by U.S. government agencies	77,598		28,415		49,183		—		—

Total TDRs	$	129,035	$	58,676	$	70,359	$	75	$	133

A summary of troubled debt restructurings by accruing status as of December 31, 2015 is as follows (in thousands):



	As of
	December 31, 2015
	Recorded Investment		Performing in Accordance With Modified Terms		Not Performing in Accordance With Modified Terms		Specific Allowance
Nonaccruing TDRs:

Commercial:
Energy	$	2,304	$	2,304	$	—	$	—
Services	9,027		8,210		817		148
Wholesale/retail	2,758		2,706		52		9
Manufacturing	282		282		—		—
Healthcare	673		673		—		—
Other commercial and industrial	621		89		532		—
Total commercial	15,665		14,264		1,401		157

Commercial real estate:
Residential construction and land development	2,328		1,556		772		—
Retail	1,319		942		377		—
Office	165		165		—		—
Multifamily	—		—		—		—
Industrial	—		—		—		—
Other real estate loans	920		478		442		—
Total commercial real estate	4,732		3,141		1,591		—

Residential mortgage:
Permanent mortgage	16,618		9,043		7,575		68
Permanent mortgage guaranteed by U.S. government agencies	11,136		139		10,997		—
Home equity	5,159		4,218		941		—
Total residential mortgage	32,913		13,400		19,513		68

Personal	324		297		27		—

Total nonaccuring TDRs	$	53,634	$	31,102	$	22,532	$	225

Accruing TDRs:
Permanent mortgages guaranteed by U.S. government agencies	74,050		23,029		51,021		—

Total TDRs	$	127,684	$	54,131	$	73,553	$	225

A summary of troubled debt restructurings by accruing status as of March 31, 2015 is as follows (in thousands):



	As of March 31, 2015
	Recorded Investment		Performing in Accordance With Modified Terms		Not Performing in Accordance With Modified Terms		Specific Allowance		Amounts Charged Off During the Three Months Ended March 31, 2015
Nonaccruing TDRs:

Commercial:
Energy	$	—	$	—	$	—	$	—	$	—
Services	1,617		687		930		148		—
Wholesale/retail	3,224		3,131		93		9		—
Manufacturing	325		325		—		—		—
Healthcare	—		—		—		—		—
Other commercial and industrial	636		87		549		—		—
Total commercial	5,802		4,230		1,572		157		—

Commercial real estate:
Residential construction and land development	7,234		5,724		1,510		—		—
Retail	3,543		1,384		2,159		—		—
Office	1,364		182		1,182		—		—
Multifamily	—		—		—		—		—
Industrial	—		—		—		—		—
Other real estate loans	1,474		1,001		473		—		—
Total commercial real estate	13,615		8,291		5,324		—		—

Residential mortgage:
Permanent mortgage	15,680		11,667		4,013		102		5
Permanent mortgage guaranteed by U.S. government agencies	1,579		320		1,259		—		—
Home equity	5,298		4,333		965		—		24
Total residential mortgage	22,557		16,320		6,237		102		29

Personal	410		254		156		—		4

Total nonaccruing TDRs	$	42,384	$	29,095	$	13,289	$	259	$	33

Accruing TDRs:
Permanent mortgages guaranteed by U.S. government agencies	80,225		24,483		55,742		—		—

Total TDRs	$	122,609	$	53,578	$	69,031	$	259	$	33

Troubled debt restructurings generally consist of interest rate concessions, payment stream concessions or a combination of concessions to distressed borrowers. The following tables detail the recorded balance of loans at March 31, 2016 by class that were restructured during the three months ended March 31, 2016 by primary type of concession (in thousands):



	Three Months Ended March 31, 2016
	Accruing							Nonaccrual						Total
		Payment Stream		Combination & Other		Total		Payment Stream		Combination & Other		Total
Commercial:
Energy		$	—	$	—	$	—	$	525	$	—	$	525	$	525
Services		—		—		—		—		—		—		—
Wholesale/retail		—		—		—		—		—		—		—
Manufacturing		—		—		—		—		—		—		—
Healthcare		—		—		—		—		—		—		—
Other commercial and industrial		—		—		—		—		—		—		—
Total commercial		—		—		—		525		—		525		525

Commercial real estate:
Residential construction and land development		—		—		—		—		—		—		—
Retail		—		—		—		—		—		—		—
Office		—		—		—		—		—		—		—
Multifamily		—		—		—		—		—		—		—
Industrial		—		—		—		—		—		—		—
Other real estate loans		—		—		—		—		—		—		—
Total commercial real estate		—		—		—		—		—		—		—

Residential mortgage:
Permanent mortgage		—		—		—		367		62		429		429
Permanent mortgage guaranteed by U.S. government agencies		4,331		4,658		8,989		—		90		90		9,079
Home equity		—		—		—		—		622		622		622
Total residential mortgage		4,331		4,658		8,989		367		774		1,141		10,130

Personal		—		—		—		—		10		10		10

Total		$	4,331	$	4,658	$	8,989	$	892	$	784	$	1,676	$	10,665

Troubled debt restructurings generally consist of interest rate concessions, payment stream concessions or a combination of concessions to distressed borrowers. The following tables detail the recorded balance of loans by class that were restructured during three months ended March 31, 2015 by primary type of concession (in thousands):



	Three Months Ended March 31, 2015
	Accruing						Nonaccrual						Total
	Payment Stream		Combination & Other		Total		Payment Stream		Combination & Other		Total
Commercial:
Energy	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Services	—		—		—		—		—		—		—
Wholesale/retail	—		—		—		—		—		—		—
Manufacturing	—		—		—		—		—		—		—
Healthcare	—		—		—		—		—		—		—
Other commercial and industrial	—		—		—		—		—		—		—
Total commercial	—		—		—		—		—		—		—

Commercial real estate:
Residential construction and land development	—		—		—		4,649		—		4,649		4,649
Retail	—		—		—		—		—		—		—
Office	—		—		—		—		—		—		—
Multifamily	—		—		—		—		—		—		—
Industrial	—		—		—		—		—		—		—
Other real estate loans	—		—		—		—		—		—		—
Total commercial real estate	—		—		—		4,649		—		4,649		4,649

Residential mortgage:
Permanent mortgage	—		—		—		659		622		1,281		1,281
Permanent mortgage guaranteed by U.S. government agencies	7,990		6,308		14,298		—		142		142		14,440
Home equity	—		—		—		152		842		994		994
Total residential mortgage	7,990		6,308		14,298		811		1,606		2,417		16,715

Personal	—		—		—		—		63		63		63

Total	$	7,990	$	6,308	$	14,298	$	5,460	$	1,669	$	7,129	$	21,427

The following table summarizes, by loan class, the recorded investment at March 31, 2016 and 2015, respectively, of loans modified as TDRs within the previous 12 months and for which there was a payment default during the three months ended March 31, 2016 and 2015, respectively (in thousands):



	Three Months Ended March 31, 2016						Three Months Ended March 31, 2015
	Accruing		Nonaccrual		Total		Accruing		Nonaccrual		Total
Commercial:
Energy	$	—	$	2,829	$	2,829	$	—	$	—	$	—
Services	—		—		—		—		—		—
Wholesale/retail	—		—		—		—		—		—
Manufacturing	—		—		—		—		—		—
Healthcare	—		—		—		—		—		—
Other commercial and industrial	—		—		—		—		—		—
Total commercial	—		2,829		2,829		—		—		—

Commercial real estate:
Residential construction and land development	—		—		—		—		363		363
Retail	—		—		—		—		—		—
Office	—		—		—		—		—		—
Multifamily	—		—		—		—		—		—
Industrial	—		—		—		—		—		—
Other real estate loans	—		—		—		—		—		—
Total commercial real estate	—		—		—		—		363		363

Residential mortgage:
Permanent mortgage	—		1,597		1,597		—		2,383		2,383
Permanent mortgage guaranteed by U.S. government agencies	22,606		1,346		23,952		33,920		673		34,593
Home equity	—		365		365		—		693		693
Total residential mortgage	22,606		3,308		25,914		33,920		3,749		37,669

Personal	—		—		—		—		24		24

Total	$	22,606	$	6,137	$	28,743	$	33,920	$	4,136	$	38,056

A payment default is defined as being 30 days or more past due. The table above includes loans that experienced a payment default during the period, but may be performing in accordance with the modified terms as of the balance sheet date.

Nonaccrual & Past Due Loans

Past due status for all loan classes is based on the actual number of days since the last payment was due according to the contractual terms of the loans.

A summary of loans currently performing, loans past due and accruing and nonaccrual loans as of March 31, 2016 is as follows (in thousands):



			Past Due
	Current		30 to 89 Days		90 Days or More		Nonaccrual		Total
Commercial:
Energy	$	2,864,408	$	3,001	$	2,458	$	159,553	$	3,029,420
Services	2,714,697		4,682		—		9,512		2,728,891
Wholesale/retail	1,443,503		4,658		—		3,685		1,451,846
Manufacturing	600,029		—		304		312		600,645
Healthcare	1,994,402		—		—		1,023		1,995,425
Other commercial and industrial	481,286		345		—		567		482,198
Total commercial	10,098,325		12,686		2,762		174,652		10,288,425

Commercial real estate:
Residential construction and land development	167,160		—		—		4,789		171,949
Retail	809,220		—		—		1,302		810,522
Office	694,923		—		—		629		695,552
Multifamily	728,183		—		5,256		250		733,689
Industrial	564,391		—		—		76		564,467
Other real estate loans	392,104		—		—		2,224		394,328
Total commercial real estate	3,355,981		—		5,256		9,270		3,370,507

Residential mortgage:
Permanent mortgage	918,965		1,943		—		27,497		948,405
Permanent mortgages guaranteed by U.S. government agencies	43,259		27,325		107,216		19,550		197,350
Home equity	710,824		2,200		—		10,530		723,554
Total residential mortgage	1,673,048		31,468		107,216		57,577		1,869,309

Personal	493,722		271		1		331		494,325

Total	$	15,621,076	$	44,425	$	115,235	$	241,830	$	16,022,566

A summary of loans currently performing, loans past due and accruing and nonaccrual loans as of December 31, 2015 is as follows (in thousands):



			Past Due
	Current		30 to 89 Days		90 Days or More		Nonaccrual		Total
Commercial:
Energy	$	3,033,504	$	2,635	$	—	$	61,189	$	3,097,328
Services	2,769,895		4,091		—		10,290		2,784,276
Wholesale/retail	1,418,396		49		700		2,919		1,422,064
Manufacturing	556,398		—		—		331		556,729
Healthcare	1,879,873		2,435		—		1,072		1,883,380
Other commercial and industrial	507,929		100		102		623		508,754
Total commercial	10,165,995		9,310		802		76,424		10,252,531

Commercial real estate:
Residential construction and land development	156,017		—		—		4,409		160,426
Retail	795,180		—		—		1,319		796,499
Office	637,056		—		—		651		637,707
Multifamily	742,697		8,114		—		274		751,085
Industrial	563,093		—		—		76		563,169
Other real estate loans	347,498		—		377		2,272		350,147
Total commercial real estate	3,241,541		8,114		377		9,001		3,259,033

Residential mortgage:
Permanent mortgage	913,062		3,290		—		28,984		945,336
Permanent mortgages guaranteed by U.S. government agencies	33,653		30,383		111,001		21,900		196,937
Home equity	721,149		3,095		20		10,356		734,620
Total residential mortgage	1,667,864		36,768		111,021		61,240		1,876,893

Personal	551,533		693		8		463		552,697

Total	$	15,626,933	$	54,885	$	112,208	$	147,128	$	15,941,154

A summary of loans currently performing, loans past due and accruing and nonaccrual loans as of March 31, 2015 is as follows (in thousands):



			Past Due
	Current		30 to 89 Days		90 Days or More		Nonaccrual		Total
Commercial:
Energy	$	2,894,332	$	6,787	$	—	$	1,875	$	2,902,994
Services	2,587,668		415		49		4,744		2,592,876
Wholesale/retail	1,401,399		—		—		4,401		1,405,800
Manufacturing	560,008		500		—		417		560,925
Healthcare	1,509,594		25		—		1,558		1,511,177
Other commercial and industrial	416,362		115		29		885		417,391
Total commercial	9,369,363		7,842		78		13,880		9,391,163

Commercial real estate:
Residential construction and land development	129,554		—		—		9,598		139,152
Retail	654,558		—		445		3,857		658,860
Office	511,452		—		—		2,410		513,862
Multifamily	745,247		4,739		—		—		749,986
Industrial	478,508		—		—		76		478,584
Other real estate loans	390,411		648		—		3,961		395,020
Total commercial real estate	2,909,730		5,387		445		19,902		2,935,464

Residential mortgage:
Permanent mortgage	926,848		4,051		—		33,365		964,264
Permanent mortgages guaranteed by U.S. government agencies	39,309		22,370		135,244		3,256		200,179
Home equity	749,618		3,072		—		9,866		762,556
Total residential mortgage	1,715,775		29,493		135,244		46,487		1,926,999

Personal	429,618		428		—		464		430,510

Total	$	14,424,486	$	43,150	$	135,767	$	80,733	$	14,684,136